For the injection mould market has a certain understanding of friends know, two-colour injection moulds in the mould market is still very popular, because the appearance of the products produced by this process is very beautiful, in terms of colour replacement costs are relatively low, and therefore by a very large number of manufacturers like, then in the use of this kind of mould process, we need to pay attention to what? Let's learn more about it.
1. Shape
In fact, it will be divided into two kinds of moulds: female mould and male mould, the number of these two moulds are two children's film shape is different, the follow-up will be shaped into a product, but the two shapes of the male mould is to be exactly the same, so we can use this to determine which is the male mould that is the female mould, in the process of In the selection process, this is also a basis to help us judge whether the product meets the standard.
2. Technical requirements
There is a certain threshold for the use of two-colour injection moulds, and not everyone can easily get to grips with them, because they have to fit together in the process, which leads to the overall process of rotating 180 degrees in the centre in order to fit together completely. In addition, in order to ensure that the two poured products can effectively fit together, the size of the product can be adjusted slightly larger during the first injection, so that it can be combined more closely with the other one during the second molding, so that the effect of sealing can be easily achieved, and relatively speaking, the operation is relatively simple, and can effectively avoid the situation of not being able to fit together.
3. Observation of status
Because the two-colour injection mould is divided into two injection moulds, the second injection will to a certain extent have a certain impact on the first injection, so when the second injection is carried out, we should pay attention to his liquidity or impulse will not have an impact on the first injection products, if found to have an impact, to immediately stop, because there is already a problem, the subsequent continued production of products is also The product will not be used. If you want to solve this problem effectively, you have to control the details of the whole injection moulding process.
4. Balance
In the injection moulding process, the two male moulds and the two female moulds should be arranged in such a way that they are as balanced as possible, preferably in the same mould, because if there are differences, it will lead to differences in the products. Therefore, when using two-colour injection moulds, it is very important to have a good grasp of this aspect, because after all, the effect of two injection moulds is very likely to be different.
The use of two-color injection moulds need to pay attention to the content is above these, smaller manufacturers in this regard is indeed relatively easy to roll over, but if the scale of the enterprise is relatively large, the use of more experience, the probability of problems will be very low.
Last: A few elements that determine the length of use of a two-material, two-colour mould Next: The two-color plastic mold produced shrinkage phenomenon of countermeasures
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Cause
1.Injection pressure or barrel temperature
2.Too much feed material
3.Too long advance time of the pump column
4.Unbalance of the feeding port in multiple writing
5.There is a depressed part in the mold